/* Copyright */
/*******************************************************************************
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 Tsunagi-BPM
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *******************************************************************************/
 /* Copyright End */
 
package tsunagi.rest.example.bookResource;

import java.util.List;
import java.util.Map;
import java.util.logging.Logger;

import tsunagi.rest.RequestAnalyzer;
import tsunagi.rest.RestLikeUtil;

public class BookAnalyzer extends RequestAnalyzer {
	public static final String FIELD_SPECIAL_FLAG = "specialFlag";
	
	@Override
	public Object execute(String method, String url, Map params) {
		Object result = null;
		switch(method) {
		case RestLikeUtil.METHOD_GET:
			result = doGet(params);
			break;
		case RestLikeUtil.METHOD_POST:
			result = doPost(params);
			break;
		default:
			break;
		}
		return result;
	}
	
	protected Object doGet(Map params) {
		Logger.getLogger(this.getClass().getName()).info("Get Called");
		Object result = null;
		String special = this.getParameter(params, FIELD_SPECIAL_FLAG);
		if ("true".equals(special)) {
			result = this.instantiateBookSpecial(params);
		} else {
			result = this.instantiateBook(params);
		}
		return result;
	}
	
	protected Book instantiateBook(Map params) {
		Book result = new Book();
		result.setIsbn(this.getParameter(params, Book.FIELD_ISBN));
		result.setTitle(this.getParameter(params, Book.FIELD_TITLE));
		result.setSummary(this.getParameter(params, Book.FIELD_SUMMARY));
		return result;
	}

	protected BookSpecial instantiateBookSpecial(Map params) {
		BookSpecial result = new BookSpecial();
		result.setIsbn(this.getParameter(params, Book.FIELD_ISBN));
		result.setTitle(this.getParameter(params, Book.FIELD_TITLE));
		result.setSummary(this.getParameter(params, Book.FIELD_SUMMARY));
		
		List<String> reviews = result.getReviews();
		int count = 0;
		while(true) {
			String param = this.getParameter(params, BookSpecial.FIELD_REVIEW);
			if (param != null) {
				String review = param + Integer.toString(count++);
				reviews.add(review);
			} else {
				break;
			}
		}
		return result;
	}

	protected Object doPost(Map params) {
		Logger.getLogger(this.getClass().getName()).info("Post Called");
		// below the same code as doGet
		Object result = null;
		String special = this.getParameter(params, FIELD_SPECIAL_FLAG);
		if ("true".equals(special)) {
			result = this.instantiateBookSpecial(params);
		} else {
			result = this.instantiateBook(params);
		}
		return result;
	}
}
